Event Icons

When trepan enters, it reports where you are, same as ruby-debug. However different is the addition of a two-character event icon:

In ruby-debug:

$ rdebug test.rb
/tmp/test.rb:1   # This is a ruby-debug location line
x = 'first line of program'
(rdb:1)

In trepan:

$ trepan test.rb
-- (/tmp/test.rb:1) # This is a trepan location line
^^ two-character icon here
x = 'first line of program'
(trepan):

Above ‘--’ indicates we are at a line event. Here is a list of all of the icons and what they mean:

icon	event name
xx	brkpt
C>	c-call
<C	c-return
->	call
::	class
[]	coverage
:o	debugger-call
--	line
!!	raise
<-	return
sw	switch
$V	trace-var
?!	unknown
VM	vm
..	vm-insn

And -| is an “end” event.